<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator=">">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片区域 -->
    <el-card>
      <!-- 搜索按钮 -->
      <el-row>
        <el-col :span="8">
          <el-input v-model="queryInfo.query"
                    placeholder="请输入内容"
                    clearable
                    @clear="getGoodsList">
            <el-button slot="append"
                       icon="el-icon-search"
                       @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4"
                class="add-btn">
          <el-button type="primary"
                     @click="goAddGoods">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- 表单区域 -->
      <el-table :data="goodslist"
                border
                stripe>
        <el-table-column type="index"
                         label="#"></el-table-column>
        <el-table-column label="商品名称"
                         prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)"
                         prop="goods_price"
                         width="90px"></el-table-column>
        <el-table-column label="商品重量"
                         prop="goods_weight"
                         width="70px"></el-table-column>
        <el-table-column label="创建时间"
                         prop="add_time"
                         width="160px">
          <template slot-scope="scope">
            {{scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作"
                         width="130px">
          <template slot-scope="scope">
            <el-button type="primary"
                       size="mini"
                       icon="el-icon-edit"></el-button>
            <el-button type="danger"
                       size="mini"
                       icon="el-icon-delete"
                       @click="removeGoods(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页导航 -->
      <el-pagination @size-change="handleSizeChange"
                     @current-change="handleCurrentChange"
                     :current-page="queryInfo.pagenum"
                     :page-sizes="[5, 10, 15, 20]"
                     :page-size="queryInfo.pagesize"
                     layout="total, sizes, prev, pager, next, jumper"
                     :total="total">
      </el-pagination>
    </el-card>

    <!-- 添加框 -->

  </div>
</template>

<script>
export default {
  data () {
    return {
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 当前每页显示条数
        pagesize: 10
      },
      goodslist: [],
      total: 0
    }
  },
  created () {
    this.getGoodsList()
  },
  methods: {
    // 获取数据
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败！')
      }
      //  console.log(res);
      this.goodslist = res.data.goods
      this.total = res.data.total
    },
    // 监听页码值发生改变，当页码值发生改变 获取到 newpage  赋值给 pagenum
    handleCurrentChange (newpage) {
      this.queryInfo.pagenum = newpage
      this.getGoodsList()
    },
    // 当每页显示条数发生改变，当每页显示条数发生改变  获取到 newSize  赋值给 pagesize
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    // 删除商品
    async removeGoods (id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该商品, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      // 👆捕获错误
      // 确认删除,返回confirm
      // 取消删除,返回cancel
      if (confirmResult !== 'confirm') {
        this.$message.info('删除已取消')
        return
      }
      const { data: res } = await this.$http.delete(`goods/${id}`)
      if (res.meta.status !== 200) {
        return this.$message.error('删除商品失败！')
      }
      this.$message.success('删除商品成功！')
      this.getGoodsList()
    },
    goAddGoods () {
      this.$router.push('/goods/add')
      // console.log(this.$router)
    }
  }
}
</script>

<style lang="less" scoped>
.add-btn {
  margin-left: 10px;
}
</style>
